{"id":"CVE-2024-31987","aliases":["EUVD-2024-1189","GHSA-cv55-v6rw-7r5v"],"status":"published","title":"XWiki Platform remote code execution from account via custom skins support","description":"XWiki Platform is a generic wiki platform. Starting in version 6.4-milestone-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. No known workarounds are available except for upgrading.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01447,"percentile":0.73531,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-862"],"published":"2024-04-10T17:14:47Z","modified":"2026-10-28T10:43:46Z","fixes":[{"ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","fixed_in":["14.10.19","15.5.4","15.10-rc-1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.4-milestone-1"},{"fixed":"14.10.19"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.0-rc-1"},{"fixed":"15.5.4"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.6-rc-1"},{"fixed":"15.10-rc-1"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.4-milestone-1"},{"fixed":"14.10.19"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.0-rc-1"},{"fixed":"15.5.4"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.xwiki.platform:xwiki-platform-oldcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"15.6-rc-1"},{"fixed":"15.10-rc-1"}]}]}],"products":[{"vendor":"xwiki","product":"xwiki"},{"vendor":"xwiki","product":"xwiki-platform"}],"references":[{"url":"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cv55-v6rw-7r5v","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","web"]},{"url":"https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/xwiki/xwiki-platform/commit/626d2a5dbf95b4e719ae13bf1a0a9c76e4edd5a2","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://jira.xwiki.org/browse/XWIKI-21478","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-31987","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-cv55-v6rw-7r5v"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/31xxx/CVE-2024-31987.json","tags":["advisory"]},{"url":"https://github.com/xwiki/xwiki-platform","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-31987","title":"XWiki Platform remote code execution from account via custom skins support","description":"XWiki Platform is a generic wiki platform. Starting in version 6.4-milestone-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. No known workarounds are available except for upgrading.","status":"published","published":"2024-04-10T20:32:39.317Z","modified":"2024-08-20T18:00:36.216Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:34:14.649724Z"}],"euvd":[{"id":"EUVD-2024-1189","description":"XWiki Platform is a generic wiki platform. Starting in version 6.4-milestone-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. No known workarounds are available except for upgrading.","status":"published","published":"2024-04-10T20:32:39Z","modified":"2024-08-20T18:00:36Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:56:14.606712Z"}],"ghsa":[{"id":"GHSA-cv55-v6rw-7r5v","title":"XWiki Platform remote code execution from account via custom skins support","description":"### Impact\nAny user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. \n\nTo reproduce, as a user without edit, script or admin right, add an object of class `XWiki.XWikiSkins` to your profile. Name it whatever you want and set the Base Skin to `flamingo`.\nAdd an object of class `XWikiSkinFileOverrideClass` and set the path to `macros.vm` and the content to:\n```\n#macro(mediumUserAvatar $username)\n  #resizedUserAvatar($username 50)\n  $services.logging.getLogger('Skin').error(\"I got programming: $services.security.authorization.hasAccess('programming')\")\n#end\n```\nBack to your profile, click `Test this skin`. Force a refresh, just in case.\nIf the error \"Skin - I got programming: true\" gets logged, the installation is vulnerable.\n\n### Patches\nThis has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1.\n\n### Workarounds\nWe're not aware of any workaround except upgrading.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21478\n* https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39 (\u003e= 15.8 RC1)\n* https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56 (\u003c 15.8 RC1)\n","status":"published","published":"2024-04-10T17:14:47Z","modified":"2024-04-10T22:01:41Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:37:42.744468Z"}],"nvd":[{"id":"CVE-2024-31987","description":"XWiki Platform is a generic wiki platform. Starting in version 6.4-milestone-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. No known workarounds are available except for upgrading.","status":"published","published":"2024-04-10T21:15:07.11Z","modified":"2026-06-17T07:29:04.24Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:09:49.255123Z"}],"osv":[{"id":"CVE-2024-31987","title":"XWiki Platform remote code execution from account via custom skins support","description":"XWiki Platform is a generic wiki platform. Starting in version 6.4-milestone-1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. No known workarounds are available except for upgrading.","status":"published","published":"2024-04-10T20:32:39.317Z","modified":"2026-10-28T10:43:46.412780551Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:44:40.391953Z"},{"id":"GHSA-cv55-v6rw-7r5v","title":"XWiki Platform remote code execution from account via custom skins support","description":"### Impact\nAny user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. \n\nTo reproduce, as a user without edit, script or admin right, add an object of class `XWiki.XWikiSkins` to your profile. Name it whatever you want and set the Base Skin to `flamingo`.\nAdd an object of class `XWikiSkinFileOverrideClass` and set the path to `macros.vm` and the content to:\n```\n#macro(mediumUserAvatar $username)\n  #resizedUserAvatar($username 50)\n  $services.logging.getLogger('Skin').error(\"I got programming: $services.security.authorization.hasAccess('programming')\")\n#end\n```\nBack to your profile, click `Test this skin`. Force a refresh, just in case.\nIf the error \"Skin - I got programming: true\" gets logged, the installation is vulnerable.\n\n### Patches\nThis has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1.\n\n### Workarounds\nWe're not aware of any workaround except upgrading.\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21478\n* https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39 (\u003e= 15.8 RC1)\n* https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56 (\u003c 15.8 RC1)\n","status":"published","published":"2024-04-10T17:14:47Z","modified":"2026-09-10T03:50:11.332039461Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:46:45.639885Z"}]}}